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Note Employee benefits (Information Popular Inc. shares of common stock held by the plans) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques and Inputs [Abstract] |  |
Shares of Popular, Inc. common stock | 152,804 | 149,127
Fair value of shares of Popular, Inc. common stock | $ 7,215 | $ 5,293
Dividends paid on shares of Popular, Inc. common stock held by the plan | $ 151 | $ 132

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